Max Case Temp. The Intel Core i5-2500K is based on Sandy Bridge core, and it requires Socket 1155. There were also 65 Sandy Bridge processors, that work in the same socket. Below you will find brief characteristics of these parts, as well as stepping details. Basic Specs Intel Core i5-2500K Sandy Bridge (3300MHz, LGA1155, L3 6144Kb). Socket: A CPU socket or CPU slot is a mechanical component(s) that provides mechanical and electrical connections between a microprocessor and a printed circuit board (PCB). LGA 1155/Socket H2. Number of CoresIntel Core i5 2nd Gen.ration CPU, Intel LGA 1155/H2 Socket Compatibility CPU Fans Heatsinks 67.86 . INTEL CORE i5 2500K SR008 3.30 GHz QUAD CORE SOCKET 1155 CPU The supplied picture is a sample of one of the actual CPUs for sale. This CPU is tested and in excellent working condition.